3405-77-4, 5-Methylisoxazole-3-carboxylic acid is a Isoxazoles compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
A mixture of 2-(2-pyridyl)-5 ,6,7 , 8-tetrahydropyrido [4,3-d]pyrimidine hydrochloride (300 mg, 0.92 mmol, the product of step 3 in Example 1), 5-methylisoxazole-3-carboxylic acid (234mg, 1.84 mmol), HATU (699 mg, 1.84 mmol) and DIPEA (595 mg, 4.6 mmol) in DMF (5 mL) was stirred at rt overnight. Then the resulting mixture was poured into water (5 mL) and extracted with EA (20 mL) for three times. The combined organic layer was concentrated in vacuo and the residue was purified by prep-HPLC to give (5-methylisoxazol-3-yl)-[2-(2- pyridyl)-7 , 8-dihydro-5H-pyrido [4,3-d]pyrimidin-6-yl] methanone (39 mg) as light yellow solid.?H NMR (400 MHz, CDC13) oe: 8.83-8.94 (m, 1H), 8.45-8.78 (m, 2H), 8.23 (s, 1H), 7.88-8.08 (m,1H), 7.43-7.60 (m, 1H), 6.34-6.47 (m, 1H), 5.22 (s, 1H), 5.01 (s, 1H), 4.26 (t, 1H), 4.09-4.22 (m,1H), 3.12-3.36 (m, 2H), 2.39-2.64 (m, 3H). MS obsd. (ESI)[(M+H)]: 322.
3405-77-4, The synthetic route of 3405-77-4 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; CHENG, Zhanling; WANG, Jianhua; WANG, Min; YANG, Song; (84 pag.)WO2018/83106; (2018); A1;,
Isoxazole – Wikipedia
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